<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            width: 200px;
            height: 200px;
            margin: 30px;
            background-color: #ff8888;
        }

    </style>
</head>
<body>
    <div class="d1">d1</div>
    <div class="d2">d2</div>
    <div class="d3">d3</div>
</body>
</html>